public class Text3 {
    // 238.除自身以外的数组乘积
    public int[] productExceptSelf(int[] nums) {
        int n = nums.length;
        int[] left = new int[n], right = new int[n], ret = new int[n];
        left[0] = 1;right[n-1] = 1;

        for(int i = 1; i < n; i++){
            left[i] = left[i-1] * nums[i-1];
        }

        for(int i = n - 2; i >= 0; i--){
            right[i] = right[i+1] * nums[i+1];
        }

        for(int i = 0; i < n; i++){
            ret[i] = left[i] * right[i];
        }

        return ret;


    }
}
